Using ant4 and ant3 components in same application

[will-tugboat]

I've seen the migration guide and the compatibilty package for forms, but am also investigating another possible path. Due to the huge amount of icons and deprecatino warnings and a few style changes, I am investigating loading ant4 components at the same time as ant3 to migrate in a less forceful way.

Is it advisable to import both antd4 and antd3 components in the same web application (via npm aliases)? I have done some initial investigation in this and can load the javascript and css (via import-loader), but there are some style conflicts. Is there any way to 'namespace' all the ant4 styles so this will work?